Scrolling Child Groups question

[Dan]

If you are using a PanelBar with Scrolling child groups like this example, is it possible to get the selected item to scroll back into view if the page does a PostBack?

--
Stuart

[Rosi]

Hello Stuart ,

I suggest that you try to achieve your goal at the client-side by using the following JS function in the panelbar's OnClientLoad event.

<form id="form1" runat="server">
<script type="text/javascript">
function FocusItem()
{
    setTimeout(
    function()
    {
        var panelbar1 = <%=RadPanelbar1.ClientID %>
        var myitem = panelbar1.get_selectedItem();
        for (var i=0; i<panelbar1.get_allItems().length; i++)
        {
            if (panelbar1.get_allItems()[i].set_selected(true))
            {
                myitem.get_linkElement().scrollIntoView(true);
            }
        }
    }, 100);
}
</script>
    <telerik:RadAjaxPanel ID="RadAjaxPanel1" runat="server" Height="200px" Width="300px" EnableAJAX="false">
        <telerik:RadPanelbar ID="RadPanelbar1" runat="server" OnItemClick="RadPanelbar1_ItemClick" Height="300px" Width="200px" ExpandMode="FullExpandedItem" OnClientLoad="FocusItem">
            <Items>
                <telerik:RadPanelItem runat="server" Text="Root Option 1">
                </telerik:RadPanelItem>
                <telerik:RadPanelItem runat="server" Text="Root Option 2">
                </telerik:RadPanelItem>
            </Items>
        </telerik:RadPanelbar>
    </telerik:RadAjaxPanel>
</form>

Regards,
Rosi
the Telerik team

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[Dan]

Rosi,

Thanks for the reply.

I'm a little confused by this test ...

  if (panelbar1.get_allItems()[i].set_selected(true)) 

TBH, I'm a bit confused by the need for the loop too.

Why couldn't you just say...

var myitem = panelbar1.get_selectedItem();
myitem.get_linkElement().scrollIntoView(true);

?

--
Stuart
 

[Rosi]

Hello Stuart,


I am sorry about this mistake.The line should be:
panelbar1.get_allItems()[i].get_selected() =true
 
Also,you are absolutely right that the code I sent you is redundant.

You can modify it like this:

    <script type="text/javascript">
    function FocusItem(sender,e)
    {
        setTimeout(
            function()
            {
        var panelbar1 = $find('<%=RadPanelBar1.ClientID %>');
        var myitem = panelbar1.get_selectedItem();
            if(myitem)
                myitem.get_linkElement().scrollIntoView(true);

        }, 100);
    }
    </script>

Regards,
Rosi
the Telerik team

Instantly find answers to your questions at the new Telerik Support Center

[Dan]

Thanks Rosi,

that's great.

--
Stuart